jblaceface20
contestada

How much energy is required to raise the temperature of 3 kg of iron from 20°
C to 25°C? Use the table below and this equation: Q = mcAT.

How much energy is required to raise the temperature of 3 kg of iron from 20 C to 25C Use the table below and this equation Q mcAT class=

Respuesta :

Cricetus

Answer:

Option C (6750 J) is the appropriate response.

Explanation:

The given values are:

Mass of iron,

m = 3 kg

Specific heat capacity,

[tex]c_A[/tex] = 0.450

Temperature,

T = [tex]25-20[/tex]

  = [tex]5^{\circ}C[/tex]

Now,

⇒  [tex]Q=mc_A T[/tex]

On substituting the values, we get

⇒      [tex]=3\times 0.450\times 5[/tex]

⇒      [tex]=6.75[/tex]

i.e,

⇒      [tex]=6750 \ J[/tex]

Otras preguntas